Cephalexin (Generic) Oral Suspension for Dogs, slide 1 of 1

Cephalexin (Generic) Oral Suspension for Dogs

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In stock
Strength: 250 mg/5 mL
Size: 100-mL
  • Click to select 200-mL In stock

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Cephalexin is strawberry flavored oral suspension medication prescribed by veterinarians to treat a variety of bacterial infections found in your dog's soft tissue, skin, and genitourinary tract. This FDA-approved liquid medication can be given to your dog with or without food and may also help to prevent secondary infections. Customers may receive this drug under the names Keflex, Keftab, Zartan, Daxbia.

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Cephalexin is a broad-spectrum antibiotic that is used to treat susceptible bacterial infections throughout the body. 

Possible Side Effects

Lack of appetite, vomiting, or diarrhea may occur. Some pets may experience drooling, rapid breathing, rashes, excitability, or high fever but this is rare. Other side effects are possible, so alert your veterinarian immediately if you notice any unusual symptoms or behaviors.

Drug & Food Interactions

Aminoglycosides, Amphotericin B, and Probenicid may interact with Cephalexin. Other drug interactions may occur.  Always tell your veterinarian about any other medications or supplements your pet is taking before starting Cephalexin.


Do not use in animals who are allergic to this class of antibiotics. Do not give Cephalexin to animals who are allergic to hypersensitive penicillins as they may have an adverse reaction. Use is not recommended in pregnant or lactating animals.

NOTE: For Generic Medications, picture displayed may not depict actual product. Generic medications may vary from one order to the next by size, color and shape depending on manufacturer. Please note product may arrive in a Chewy Pharmacy vial.

Also available in capsules.

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  1. Prescribing Information

See all items by Cephalexin

  • Item Number
  • Generic Name
  • Common Brand Name(s)
    Rilexine, Keflex, Keftab, Zartan, Daxbia
  • For Use With
  • Administration Form
  • Product Form
  • Health Condition
    Respiratory Infections, Urinary Tract Infections (UTI), Skin Infections
  • Drug Type

Active Ingredient: 250 mg in 5 mL cephalexin. Inactive Ingredients: colloidal silicon dioxide, FD & C red no. 40, sodium benzoate, strawberry flavor, sucrose, xanthan gum.

Recommended Dosage

Dogs: 10-30 mg/kg, every 6 to 12 hours orally.

Storage Instructions

After mixing with water, the oral suspension should be kept in the refrigerator and any unused portion should be discarded after 14 days. Shake well before use.


What is Cephalexin Oral Suspension?

A broad-spectrum antibiotic in treating infections of soft tissue, skin, and genitourinary tract in dogs and cats.

What are the benefits of Cephalexin Oral Suspension?

  • FDA-approved for treating susceptible infections of soft tissue, skin, and genitourinary tract in dogs and cats.
  • Oral tablets.
  • Can prevent secondary infections.
  • May be administered with food in case GI upset occurs.

How is this medication given?

Give this medication exactly as directed by your veterinarian. Cephalexin Oral Suspension can be given with or without food. Give all of the cephalexin even if your pet appears to be better. Symptoms may improve before the infection is completely treated. Store capsules at room temperature away from moisture or heat. Store the liquid suspension in the refrigerator. Discard any unused liquid suspension after 14 days.

How does this medication work?

Cephalexin Oral Suspension is a cephalosporin antibiotic. Cephalosporin antibiotics suppress the growth of micro-organisms such as bacteria, fungi, or protozoa.

What results can I expect?

Cephalexin Oral Suspension can be given with or without food. Give all of the cephalexin even if your pet appears to be better. Symptoms may improve before the infection is completely treated. Mild nausea, diarrhea, or yeast infection may be more likely to occur. Continue to give Cephalexin Oral Suspension and notify your veterinarian if these symptoms occur. Talk to your veterinarian about any side effect that seems unusual or bothersome to your pet.

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  • 1 out of 5 stars

    Antibiotic oral suspension

    By Janice on Oct 10, 2020

    When all was said and done there was nothing wrong with the antibiotic however it took almost a week to arrive and it was not constituted when it did. I had to make a special trip to veterinary office to have it made into liquid form. Very disappointed.

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